Slot Antennas Broad-wall slotted-waveguide antennas have been studied extensively.A broadband cavity-backed antenna can be realized by using a T-bar feed,17 as shown in Figure 8-7.The waveguide opening onto a ground plane is commonly used in phased arrays and as a single element on curved... Single-Layer Slotted Waveguide Array The center-feed waveguide slot array enhances the frequency band-width in high gain range, where a conventional center-feed array suffers fro m serious[1-5] S. H. Park, J. Hirokawa and M. Ando, “A Planar Cross-Junction Power Divider for the Center Feed in Single-Layer Slotted Waveguide Arrays... Antennas: The Slotted Waveguide Antenna (Planar Array of…
For the synthetic aperture radar (SAR) systems, there is an increasing demand for achieving resolutions of 0.2 m times 0.2 m. As the range resolution and system bandwidth are inversely proportional, the system bandwidth are expected to be larger than 1 GHz. Thus an antenna with wider band must be developed. Waveguide slot antenna has been implemented on several SAR satellites …
Design of a Ka-Band Dual Polarized SIW Slot Array Antenna slot array antenna with suppressed mutual coupling and beam slotted leaky waveguide array for mobile reception of dual- ... J. Jin, J.G. Lu, and S.- -S. Zhong, “Waveguide slotted antenna array with broadband, dual-polarization and low cross-polarization for X-band SAR applications,” in Proc. IEEE Int. Radar Conf., Arlington, Division shaped substrate integrated waveguide slot A dual-band Substrate Integrated Waveguide (SIW) based slot antenna is presented, it's excited by microstrip line and size is 4 × 9.034 × 0.381 mm 3.The Computer Simulation Technology(CST) studio suite software is used to design and simulate the proposed design. A Low Cost, High Performance Point-to-point Slotted A Low Cost, High Performance Point-to-point Slotted Waveguide Array A slotted waveguide array intended for point-to-point radio link applications has been designed for the 23 GHz frequency band with a total bandwidth of more than 10 percent. (Resonant slot antennas typically have a lower percentage bandwidth.) The antenna shows...
For simple structure and small size, we used a patch array antenna as feed. Under strict constraints of the size, the lens shape has been designed by the multi-objective genetic algorithm.
In this paper, several configurations of Ka-band SIW-fed slot array antenna have been investigated. At first, a 1*4 corporate SIW feeding network integrated of Y- and T-junction power divider operating in 30 GHz was designed and simulated in order to provide a proper feeding network intended for the design of 4*4 and 4*8 antenna arrays. A HIGH-GAIN BROAD-BAND WAVEGUIDE LONGITU- DINAL … gain broad-band waveguide broad-wall longitudinal slot array antenna. Initially a basic two-element slot array antenna has been analyzed, and corresponding scattering parameter data have been obtained and validated. After validating the methodology, attempts have been made to design a broad-band high-gain slot array antenna. An 18-element Broadband ridged-waveguide slot-antenna array fed by a Broadband ridged-waveguide slot-antenna array fed by a back-to-back ridged waveguide. Authors. Xiao-Meng Liu, A compact broadband ridged-square-waveguide radiating element for phased array antennas in synthetic aperture radar applications, Microwave and Optical Technology Letters, 2012, ...
Coplanar waveguide-fed square slot antenna for broadband circularly polarized radiation_信息与通信_工程科技_专业资料 109人阅读|1次下载 Coplanar waveguide ...
Radioengineering - September 2018, Volume 27, Number 3 [DOI: 10… LIU, J., Jackson, D., LONG, Y. Substrate integrated waveguide (SIW) leaky-wave antenna with transverse slots. IEEE Transactions on Antennas and Propagation, 2012, vol. 60, no. 1, p. 20–29. Radioengineering - April 2017, Volume 26, Number 1 [DOI: 10… This paper deals with a substrate integrated waveguide (SIW) circularly polarized rectangular ring-slot antenna with chamfered corners designed for 5.8 GHz ISM frequency band for off-body communication. Radioengineering - September 2015, Volume 24, Number 3 [DOI: 10…
A HIGH-GAIN BROAD-BAND WAVEGUIDE LONGITU- DINAL SLOT ARRAY ...
High gain waveguide slot array antenna for 60 GHz point-to ... High gain waveguide slot array antenna for 60 GHz point-to-point communication FARID HADAVY Department of Signals and Systems CHALMERS UNIVERSITY OF TECHNOLOGY Abstract The 7GHz license free allocated frequency band around 60GHz is very attractive for both indoors and outdoors communication such as 4G/LTE backhaul, wireless
This chapter discusses concepts to achieve broadband nature of SWA antennas, design, development, and characterization of edge fed slotted waveguide array antenna, coupling slot fed SWA antenna, and high efficiency broadband slotted waveguide array. The developed SWA antennas are characterized and their measured results are presented. A WIDEBAND SLOTTED WAVEGUIDE ANTENNA ARRAY FOR … A WIDEBAND SLOTTED WAVEGUIDE ANTENNA ARRAY FOR SAR SYSTEMS S. S. Sekretarov and D. M. Vavriv Institute of Radio Astronomy National Academy of Sciences of Ukraine 4, Chervonopraporna Str., Kharkov 61002, Ukraine Abstract|Possibilities for the extension of the operational frequency band of slotted waveguide antennas are studied. It is shown that by Broadband waveguide slot array for SAR - Electronics A new kind of wideband waveguide slot array for synthetic aperture radar (SAR) is presented. Elliptical slots are first used for designing the waveguide slot antenna. An eight-element waveguide slot array operating at X-band is designed and measured. Predicted results are compared with measured data and good agreement is reported. A Broadband Slotted Ridge Waveguide Antenna Array A longitudinally-slotted ridge waveguide antenna array with a compact transverse dimension is presented. To broaden the bandwidth of the array, it is separated into two subarrays fed by a novel